VSC7991 Просмотр технического описания (PDF) - Vitesse Semiconductor

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VSC7991

SONET/SDH 10.7Gb/s Electroabsorption Modulator/Laser Diode Driver

Vitesse Semiconductor 

VITESSE

SEMICONDUCTOR CORPORATION

Advance Product Information

VSC7991

SONET/SDH 10.7Gb/s

Electroabsorption Modulator/Laser Diode Driver

Features

• Maximum Rise/Fall Times of 38ps

• High-Speed Operation

(Up to 10.7Gb/s NRZ Data)

• Differential Inputs

• Single-Supply

• CML-Compatible Data Inputs

• On-Chip 50Ω Input Terminations

• 50Ω Output Impedance

General Description

The VSC7991 is a single 7V supply, 10.7Gb/s Electroabsorption Modulator (EAM)/laser diode driver with

direct access to the laser modulation FETs. Laser offset and modulation currents are set by external components

allowing precision monitoring and setting of the voltage levels. Data inputs are differentially terminated to 50Ω.

Applications

• SONET/SDH @ 2.488Gb/s, 9.952Gb/s, 10.7Gb/s

VSC7991 Block Diagram

50Ω(1)

DIN

NDIN

50Ω(1)

Note: (1) On-die components.

DCC

VIP

60Ω(1)

60Ω(1)

300Ω(1)

IMOD

NDOUT

DOUT

300Ω(1)

IB

IBN

IP

G52321-0, Rev 2.3

02/26/01

© VITESSE SEMICONDUCTOR CORPORATION • 741 Calle Plano • Camarillo, CA 93012

Tel: (800) VITESSE • FAX: (805) 987-5896 • Email: prodinfo@vitesse.com

Internet: www.vitesse.com

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